In the old days of film, you had to sort through hundreds or thousands of prints, negatives, and contact sheets to keep track of your pictures. Many people who still work with film have boxes, envelopes, folders, and so on with little idea of how to find a picture or even a clear idea of what they have. With digital photography, all that has changed. Image-cataloguing software (also called image file management or organizing software) makes cataloguing, archiving, tagging, and even modifying pictures quite simple.